Quick-release type blade device for mud scraper

Abstract

The utility model relates to a mud scraper technical field especially relates to a mud scraper quick detach type scraper device, including sewage pool and mud scraper mechanism, the inside center place of sewage pool is provided with mud scraper mechanism vertically, and mud scraper mechanism includes mud scraper pivot and assembling piece, mud scraper pivot vertical rotation connection is in the center place of the bottom surface of sewage pool, and the outer wall upside of mud scraper pivot is fixed with two hole plates horizontally symmetrical, and assembling piece includes assembling seat, locking lever plate and mud scraper board, and assembling seat is vertically arranged below hole plate, and the top surface of assembling seat is vertically fixed with guide rod, the utility model can be completed through three simple actions of pulling, closing and loosening, completely avoids bolt corrosion, and the dismounting problem brought by stagnation, shortens the replacement procedure originally needing dozens of minutes to several minutes, remarkably improves the scraper replacement efficiency, effectively reduces the downtime of mud scraper, guarantees the continuous operation of sewage treatment system.

Description

Technical Field

[0001] This utility model relates to the field of sludge scraper technology, and in particular to a quick-release scraper device for a sludge scraper. Background Technology

[0002] In the field of water treatment, sedimentation tanks are the core facilities for achieving solid-liquid separation, and their operating efficiency directly determines the effectiveness of sewage treatment, tap water purification, and industrial wastewater treatment. Sludge scrapers, as key supporting equipment for sedimentation tanks, are commonly used in the industry for scraping sludge from the bottom of circular sewage tanks, taking into account their structural characteristics. This type of scraper uses a central drive device to rotate a rotating arm around the central axis of the tank. The scraper blades fixed to the bottom of the rotating arm are in close contact with the bottom surface of the sedimentation tank, forming a continuous scraping trajectory during rotation. This gradually gathers the dispersed sludge from the bottom of the tank to the central sludge discharge area, ultimately achieving centralized sludge discharge.

[0003] During this process, the scraper directly contacts the sludge and the bottom of the pool, undertaking the core scraping and conveying functions. Its working condition plays a decisive role in the overall operating efficiency of the sludge scraper. In practical applications, as a vulnerable part of the sludge scraper, the scraper faces the problem of unavoidable wear. When the scraper wear reaches a certain level, its sludge scraping effect will decrease significantly, resulting in incomplete sludge removal and sludge residue accumulation in some areas. Therefore, it is necessary to disassemble and replace the worn scraper in time to restore the normal working performance of the sludge scraper. Currently, most of the scrapers of the mainstream center-drive sludge scrapers on the market are fixed by bolt locking, that is, the scraper is rigidly connected to the mounting base of the rotating arm by multiple bolts.

[0004] However, when it is necessary to replace worn scrapers, operators must first use special tools to loosen and remove multiple fixing bolts one by one. Some bolts are in a humid and corrosive sewage environment for a long time, which makes them prone to rust and jamming, further increasing the difficulty of disassembly. After disassembly, the installation of new scrapers also requires aligning each bolt hole with the bolts and tightening them. The entire replacement process is cumbersome and time-consuming, resulting in extremely low scraper replacement efficiency. Utility Model Content

[0005] This utility model solves the problems in related technologies and proposes a quick-release scraper device for sludge scrapers.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a quick-release scraper device for a sludge scraper, comprising a sewage tank and a sludge scraping mechanism. The sludge scraping mechanism is vertically arranged at the center of the sewage tank. The sludge scraping mechanism includes a scraping shaft and an assembly component. The scraping shaft is vertically rotatably connected to the center of the bottom surface of the sewage tank, and two perforated plates are horizontally and symmetrically fixed on the upper side of the outer wall of the scraping shaft. The assembly component includes an assembly base, a locking rod plate, and a scraper plate. The assembly base is vertically arranged below the perforated plates. Furthermore, a guide rod is vertically fixed on the top surface of the assembly base, and the guide rod is vertically slidably inserted into the perforated plate. An assembly groove is vertically opened on one side of the assembly base, and an assembly slide is vertically fixed on the assembly groove of the assembly base. A locking rod plate is horizontally inserted through the vertical end face of the other side of the assembly base. An assembly slide groove is vertically opened on one side of the top of the mud scraper, and the assembly slide groove on the mud scraper is vertically slidably inserted into the assembly slide. A locking hole is horizontally opened through the mud scraper, and the locking hole is slidably inserted into the locking rod plate.

[0007] As a preferred embodiment, a downward pressure spring is vertically sleeved on the outside of the guide rod, and the two ends of the downward pressure spring are fixed to the top of the guide rod and the top surface of the orifice plate, respectively.

[0008] As a preferred embodiment, a lifting spring is horizontally fixed on the locking rod plate, and the other end of the lifting spring is fixed on the assembly base.

[0009] As a preferred embodiment, multiple guide posts are vertically fixed on the top surface inside the assembly slot of the assembly base, and a guide groove is vertically opened on the top surface of the scraper blade, and the guide groove is inserted into the guide groove on the scraper blade.

[0010] As a preferred embodiment, a circular guide rail is horizontally fixed on the top surface of the sewage tank, and a toothed ring is horizontally fixed on the top surface of the sewage tank.

[0011] As a preferred embodiment, a drive arm is horizontally fixed on the top surface of the sludge scraper shaft, and both ends of the drive arm are rotatably connected to guide wheels, which are engaged with circular guide rails.

[0012] As a preferred embodiment, a drive motor is horizontally fixed on the drive arm, and a drive gear is fixed at the output end of the drive motor, and the drive gear meshes with a gear ring.

[0013] As a preferred option, a drainage ditch is provided through the bottom surface of the sewage tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Employing a spring-locking assembly design, when replacing the scraper blade, the operator only needs to manually pull the locking rod plate on one side of the assembly base. The deformation of the lifting spring causes the locking rod plate to disengage from the assembly groove, thus releasing the lock on the old scraper blade. Then, the assembly groove of the new scraper blade is slidably aligned with the assembly slide bar of the assembly base. Simultaneously, the insertion and engagement of the guide post and guide groove quickly completes the positioning. Finally, the locking rod plate is released, and the restoring force of the lifting spring pushes it to automatically insert into the locking hole, completing the fixation. The entire replacement process requires no special tools and can be completed with just three simple actions: pulling, aligning, and releasing. This completely avoids the disassembly difficulties caused by bolt corrosion and jamming, shortening the replacement process from tens of minutes to within minutes, significantly improving scraper blade replacement efficiency, effectively reducing scraper machine downtime, and ensuring the continuous operation of the sewage treatment system.

[0016] 2. In existing bolt-fixing methods, the scraper installation requires precise alignment of multiple bolt holes, demanding high operational precision, especially in damp and confined pool environments where misalignment is highly likely. This structure incorporates dual positioning safeguards during assembly. Firstly, the sliding engagement of the assembly slide bar and the assembly groove forms a guide trajectory, allowing the scraper to quickly fit onto the assembly base along a fixed direction, preventing lateral displacement. Secondly, the insertion engagement of the guide post and the guide groove further achieves longitudinal positioning, ensuring precise alignment of the locking hole and the locking rod plate. This dual guiding design of the slide bar and groove, and the guide post and guide groove, lowers the technical threshold for assembly operations. Even in complex working environments, operators can quickly and accurately install the scraper, avoiding rework due to misalignment and further improving replacement convenience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the sewage tank in the decomposed state in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the sludge scraping mechanism in the disassembled state in an embodiment of this utility model;

[0021] Figure 5 This is a structural schematic diagram of the assembled components in the disassembled state in an embodiment of this utility model.

[0022] In the diagram: 1. Sewage tank; 11. Sewage ditch; 12. Circular guide rail; 13. Gear ring; 2. Sludge scraping mechanism; 21. Sludge scraping shaft; 22. Orifice plate; 23. Assembled component; 231. Assembled base; 232. Guide rod; 233. Downward pressure spring; 234. Assembled slide bar; 235. Locking rod plate; 236. Lifting spring; 237. Guide column; 24. Drive arm; 25. Guide wheel; 26. Drive motor; 27. Drive gear; 28. Sludge scraper; 281. Assembled slide; 282. Locking socket; 283. Guide groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] like Figures 1 to 5As shown, a quick-release scraper device for a sludge scraper includes a sewage tank 1 and a sludge scraping mechanism 2. The sludge scraping mechanism 2 is vertically arranged at the center of the sewage tank 1. The sludge scraping mechanism 2 includes a scraping shaft 21 and an assembly component 23. The scraping shaft 21 is vertically rotatably connected to the center of the bottom surface of the sewage tank 1, and two perforated plates 22 are horizontally and symmetrically fixed on the upper side of the outer wall of the scraping shaft 21. The assembly component 23 includes an assembly base 231, a locking rod plate 235, and a scraper plate 28. The assembly base 231 is vertically arranged below the perforated plate 22, and a guide rod 232 is vertically fixed on the top surface of the assembly base 231. The guide rod 232 is vertically slidably inserted into the perforated plate 22. An assembly groove is vertically opened on one side of the assembly base 231, and the assembly base... An assembly slide bar 234 is vertically fixed on the assembly slot of 231. A locking rod plate 235 is horizontally inserted through the vertical end face of the other side of the assembly base 231. An assembly slide groove 281 is vertically opened on one side of the top of the scraper plate 28, and the assembly slide groove 281 on the scraper plate 28 is vertically slidably inserted with the assembly slide bar 234. A locking hole 282 is horizontally opened through the scraper plate 28, and the locking hole 282 is slidably inserted with the locking rod plate 235. By setting the technical features of the quick-release scraper device, including the perforated plate 22, the assembly base 231 and the locking rod plate 235, as well as the linked assembly slide bar 234 and the scraper plate 28, the components work together to enable the device to be quickly installed and disassembled. The perforated plate 22 is fixed to the upper side of the outer wall of the scraper shaft 21, while the assembly base 231 is vertically arranged below the perforated plate 22. The perforated plate 22 and the assembly base 231 are vertically slidably connected by the guide rod 232. This structure allows the scraper blade 28 to be flexibly assembled and disassembled with its assembly base 231, while the perforated plate 22 provides a stable positioning reference. The assembly slide bar 234 is located in the assembly groove of the assembly base 231, and the assembly slide groove 281 on the scraper blade 28 is vertically slidably inserted into it. This design allows the scraper blade 28 to be easily installed on the assembly base 231 without complicated assembly steps. The scraper blade 28 can be quickly installed simply by aligning the assembly slide groove 281 and the assembly slide bar 234. The locking hole 282 on the scraper blade 28 is slidably inserted into the locking rod plate 235, which can further fix the position of the scraper blade 28 and ensure that it will not fall off during operation, increasing the reliability and stability of the device. By coordinating the orifice plate 22, the assembly base 231, and the scraper blade 28, and precisely matching the guide rod 232, the assembly slide bar 234, and the locking hole 282, the scraper blade can be easily installed and disassembled. This not only greatly improves the ease of equipment maintenance and reduces repair time, but also ensures the smooth operation of the scraping process, preventing work efficiency from being affected by cumbersome assembly procedures. Furthermore, due to the quick disassembly and installation characteristics of the scraper blade, scraper blades of different shapes and sizes can be flexibly replaced according to actual needs to adapt to different sewage tank environments, improving the versatility and adaptability of the device.

[0025] In one embodiment, such as Figure 4 and 5 As shown, a downward pressure spring 233 is vertically sleeved on the outside of the guide rod 232, with its two ends fixed to the top of the guide rod 232 and the top surface of the orifice plate 22, respectively. By incorporating this technical feature, the downward pressure spring 233, fixed to the top of the guide rod 232 and the top surface of the orifice plate 22, generates a spring force in the vertical direction of the guide rod 232. Specifically, when the guide rod 232 moves up and down within the orifice plate 22, the downward pressure spring 233 generates a corresponding spring force according to the position change of the guide rod, consistently applying a downward thrust. Therefore, the downward pressure spring 233 stabilizes and resets the guide rod 232, effectively ensuring that the guide rod 232 can move accurately and stably up and down along the orifice plate 22.

[0026] In one embodiment, such as Figure 5 As shown, a lifting spring 236 is horizontally fixed on the locking rod plate 235, and the other end of the lifting spring 236 is fixed to the assembly base 231. By setting the lifting spring 236, since both ends of the lifting spring 236 are fixed to the locking rod plate 235 and the assembly base 231 respectively, an elastic connection is formed between the locking rod plate 235 and the assembly base 231. The working principle of this method is that during the movement of the locking rod plate 235, the lifting spring 236 will generate a corresponding reaction force according to the spring force. This force enables the locking rod plate 235 to move more stably and can absorb external impact forces to a certain extent.

[0027] In one embodiment, such as Figure 5 As shown, multiple guide posts 237 are vertically fixed on the top surface inside the assembly slot of the assembly base 231. A guide groove 283 is vertically formed on the top surface of the scraper blade 28, and the guide groove 283 is inserted into the guide groove 283 on the scraper blade 28. By setting the guide posts 237 and the guide groove 283, the guide posts 237 are vertically fixed on the top surface inside the assembly slot of the assembly base 231, while the guide groove 283 is vertically formed on the top surface of the scraper blade 28. This arrangement allows the scraper blade 28 to slide along the axial direction of the guide posts 237. Specifically, the guide posts 237 provide a precise guiding path for the scraper blade 28, ensuring that the scraper blade 28 maintains the correct angle and position during operation. The smooth cooperation between the guide groove 283 and the guide posts 237 effectively reduces the frictional resistance of the scraper blade 28 during sliding, extending its service life.

[0028] In one embodiment, such as Figure 3 and 4As shown, a circular guide rail 12 is horizontally fixed on the top surface of the sewage tank 1, and a toothed ring 13 is also horizontally fixed on the top surface of the sewage tank 1. A drive arm 24 is horizontally fixed on the top surface of the sludge scraper shaft 21, and guide wheels 25 are rotatably connected to both ends of the drive arm 24, with the guide wheels 25 engaging with the circular guide rail 12. A drive motor 26 is horizontally fixed on the drive arm 24, and a drive gear 27 is fixed to the output end of the drive motor 26, meshing with the toothed ring 13. By setting the circular guide rail 12 and the toothed ring 13, which respectively provide a sliding guide and a rotation drive engagement point, the circular guide rail 12 and the toothed ring 13 have a stable guiding and precise rotational transmission function, enabling the sludge scraper shaft 21 to perform stable linear and rotational movements along a preset path. The sludge scraping shaft 21 is engaged with the circular guide rail 12 via the guide wheel 25 on the drive arm 24, ensuring that the sludge scraping shaft 21 can rotate horizontally on the top surface of the sewage tank 1. On the other hand, the drive gear 27 driven by the drive motor 26 meshes with the gear ring 13, so that the power can be accurately transmitted to the sludge scraping shaft 21, enabling it to rotate along the designated path, thereby achieving effective removal and uniform distribution of sludge in the sewage tank.

[0029] In one embodiment, such as Figure 2 and 3 As shown, a drainage ditch 11 is provided through the bottom surface of the sewage tank 1. By setting up the drainage ditch 11, the sewage ditch 11 serves to guide the flow of sewage. Since the sewage ditch 11 directly penetrates the bottom surface of the sewage tank 1, sewage can flow directly into the external collection pipe or discharge system through the ditch.

[0030] The working principle of this utility model:

[0031] First, when assembling the scraper blade 28 onto the assembly component 23 of the scraper mechanism 2, first, pull the locking rod plate 235 on one side of the assembly base 231, pull the lifting spring 236 to deform, causing the locking rod plate 235 to be pulled out of the assembly slot on the assembly base 231, and slide the assembly slide groove 281 on the scraper blade 28 into the assembly slide bar 234 on the assembly base 231. At the same time, the guide post 237 is inserted into the guide groove 283 on the scraper blade 28. After releasing the locking rod plate 235, under the deformation force of the lifting spring 236, the locking rod plate 235 is pushed into the locking insertion hole 282 of the scraper blade 28, thus completing the assembly connection between the scraper blade 28 and the assembly base 231.

[0032] In use, the drive motor 26 on the drive arm 24 is started to drive the drive gear 27 to rotate. The drive gear 27 meshes with the gear ring 13 on the top surface of the sewage tank 1, which drives the guide wheel 25 on the drive arm 24 to cooperate with the circular guide rail 12 on the sewage tank 1, thereby driving the scraper shaft 21 to rotate. This causes the scraper 28 to press against the inner bottom surface of the sewage tank 1. Under the deformation force of the downward spring 233, the scraper 28 pushes the assembly base 231 to slide vertically down on the perforated plate 22, pushing the scraper 28 to press firmly against the inner bottom surface of the sewage tank 1, and pushing the sludge into the sewage ditch 11.

[0033] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A quick-release scraper device for a sludge scraper, characterized in that, The system includes a sewage tank (1) and a sludge scraping mechanism (2). The sludge scraping mechanism (2) is vertically installed at the center of the sewage tank (1). The sludge scraping mechanism (2) includes a sludge scraping shaft (21) and an assembly (23). The sludge scraping shaft (21) is vertically rotatably connected to the center of the bottom surface of the sewage tank (1), and two perforated plates (22) are horizontally and symmetrically fixed on the upper side of the outer wall of the sludge scraping shaft (21). The assembly (23) includes an assembly base (231), a locking rod plate (235), and a sludge scraping plate (28). The assembly base (231) is vertically installed below the perforated plate (22), and a guide rod (232) is vertically fixed on the top surface of the assembly base (231). The rod (232) is vertically slidably inserted into the perforated plate (22). The assembly base (231) has a vertically opened assembly groove on one side, and an assembly slide bar (234) is vertically fixed on the assembly groove of the assembly base (231). A locking rod plate (235) is horizontally inserted through the vertical end face of the other side of the assembly base (231). The top side of the scraper (28) has a vertically opened assembly slide groove (281), and the assembly slide groove (281) on the scraper (28) and the assembly slide bar (234) are vertically slidably inserted. A locking hole (282) is horizontally opened through the scraper (28), and the locking hole (282) and the locking rod plate (235) are slidably inserted.

2. The quick-release scraper device for a sludge scraper according to claim 1, characterized in that: The guide rod (232) is vertically sleeved with a compression spring (233), and the two ends of the compression spring (233) are respectively fixed to the top of the guide rod (232) and the top surface of the perforated plate (22).

3. The quick-release scraper device for a sludge scraper according to claim 1, characterized in that: A lifting spring (236) is horizontally fixed on the locking rod plate (235), and the other end of the lifting spring (236) is fixed on the assembly base (231).

4. The quick-release scraper device for a sludge scraper according to claim 1, characterized in that: Multiple guide posts (237) are vertically fixed on the top surface inside the assembly slot of the assembly base (231), and a guide groove (283) is vertically opened on the top surface of the scraper (28), and the guide groove (283) is inserted into the guide groove (283) on the scraper (28).

5. The quick-release scraper device for a sludge scraper according to claim 1, characterized in that: A circular guide rail (12) is horizontally fixed on the top surface of the sewage tank (1), and a toothed ring (13) is horizontally fixed on the top surface of the sewage tank (1).

6. A quick-release scraper device for a sludge scraper according to claim 5, characterized in that: A drive arm (24) is horizontally fixed on the top surface of the scraper shaft (21), and guide wheels (25) are rotatably connected to both ends of the drive arm (24), and the guide wheels (25) are engaged with the circular guide rail (12).

7. A quick-release scraper device for a sludge scraper according to claim 6, characterized in that: A drive motor (26) is horizontally fixed on the drive arm (24), and a drive gear (27) is fixed at the output end of the drive motor (26), and the drive gear (27) meshes with the gear ring (13).

8. A quick-release scraper device for a sludge scraper according to claim 7, characterized in that: A drainage ditch (11) is provided through the bottom surface of the sewage tank (1).

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